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Date: May 17, 2010
metal roof ?
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okay I have a metal roof bid to do. Need some help? here are some pictures, the green stuff on the bottom left appears to be a somewhat sticky substance that has well maybe pollin on it, I think not sure any thoughts on how to clean this bad boy.

-- Edited by big bob on Monday 17th of May 2010 07:57:29 PM

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guest

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Date: May 17, 2010
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Well, I never had a metal roof yet....but from the pictures, the residue is probably sticky due to being pollen from pine trees in the background.

I really need to study up for metal and tile more. Good luck and take more pictures!!! Nice metal roof. Looks like it still shines well.

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Lake Marion Citrus & Sumter Counties in Florida


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Date: May 17, 2010
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Metal will clean with a light solution. I typically use 15% and lots of soap.  You will need to rinse it....every square inch!  Or time it just right and do it just before a hard rain. When the algae dies on a metal roof, its very noticeable and looks like heck! Thats the bad part of metal roofs.

search some of my old posts and you'll find some pics of metal roofs i've done.


-- Edited by swee****erfish on Monday 17th of May 2010 10:21:55 PM

-- Edited by swee****erfish on Tuesday 18th of May 2010 07:53:55 AM

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Date: May 17, 2010
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I will search for some of your old post Ray, thanks for the response

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Roof Cleaning Institute Of America Certified Roof Cleaner

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Date: May 18, 2010
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There is supposed to be a thread here on a roof that I cleaned last year. You will have to rinse every square inch. I only used about 7% SH but strong on the simple cherry. Remember SH kills, it does NOT clean. You have to break the bond with the surface and if you are not using a pressure washer then scrubbing with a brush is in order. Follow it up with plexmaster and make the next cleaning easier.

As for time it takes 2-3 times longer.

Safety.....A dry dirty roof is slicker than a clean wet roof. Don't be afraid to walk on a wet section that has been cleaned. You will be amazed at how well you stick.

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Premium Member Roof Cleaning Institute of America

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Date: Apr 28, 2016
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I have done a few metal roofs. I have an electric power washer,so no up down,up down. Start stop,start stop. I first spray the sticky gunk off and then brush any residual left behind. Hard to get the right brush. Not to stiff or to soft. The hardest part is climbing around the roof.  ridge ladder is good. Security line,a must. Foam soled "Korkers" help a lot. The janitor supply store has a down stream wax similar to that of the car wash,but I have not tried it yet.



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